diff --git a/locallib.php b/locallib.php
index fc9f82fe..96951aec 100644
--- a/locallib.php
+++ b/locallib.php
@@ -1354,11 +1354,18 @@ public function handle_view() {
      * @return int
      */
     public function get_number_of_active_raters() {
+        $raters = array_map(function($rater) {
+            return $rater->id;
+        }, $this->get_raters_in_course());
+
         $sql = 'SELECT COUNT(DISTINCT ra_ratings.userid) AS number
                 FROM {ratingallocate} ra INNER JOIN {ratingallocate_choices} ra_choices
                 ON ra.id = ra_choices.ratingallocateid INNER JOIN {ratingallocate_ratings} ra_ratings
                 ON ra_choices.id = ra_ratings.choiceid
                 WHERE ra.course = :courseid AND ra.id = :ratingallocateid';
+        if (!empty($raters)) {
+            $sql .= ' AND ra_ratings.userid IN ( ' . implode(',', $raters) . ' )';
+        }
         $numberofratersfromdb = $this->db->get_field_sql($sql, [
                 'courseid' => $this->course->id, 'ratingallocateid' => $this->ratingallocateid]);
         return (int) $numberofratersfromdb;
@@ -1573,12 +1580,22 @@ public function get_ratings_for_rateable_choices_for_raters_without_alloc() {
      * @throws dml_exception
      */
     public function get_choices_with_allocationcount() {
+        $raters = array_map(function($rater) {
+            return $rater->id;
+        }, $this->get_raters_in_course());
+
+        $validrater = '';
+        if (!empty($raters)) {
+            $validrater .= 'AND userid IN ( ' . implode(',', $raters) . ' )';
+        }
+
         $sql = 'SELECT c.*, al.usercount
             FROM {ratingallocate_choices} c
             LEFT JOIN (
                 SELECT choiceid, count( userid ) AS usercount
                 FROM {ratingallocate_allocations}
                 WHERE ratingallocateid =:ratingallocateid1
+                ' . $validrater .'
                 GROUP BY choiceid
             ) AS al ON c.id = al.choiceid
             WHERE c.ratingallocateid =:ratingallocateid and c.active = :active';
@@ -1596,11 +1613,19 @@ public function get_choices_with_allocationcount() {
      * @return array all allocation objects that belong this ratingallocate
      */
     public function get_allocations() {
+
+        $raters = array_map(function($rater) {
+            return $rater->id;
+        }, $this->get_raters_in_course());
+
         $query = 'SELECT al.userid, al.*, r.rating
                 FROM {ratingallocate_allocations} al
            LEFT JOIN {ratingallocate_choices} c ON al.choiceid = c.id
            LEFT JOIN {ratingallocate_ratings} r ON al.choiceid = r.choiceid AND al.userid = r.userid
                WHERE al.ratingallocateid = :ratingallocateid AND c.active = 1';
+        if (!empty($raters)) {
+            $query .= ' AND al.userid IN ( ' . implode(',', $raters) . ' )';
+        }
         $records = $this->db->get_records_sql($query, [
                 'ratingallocateid' => $this->ratingallocateid,
         ]);
@@ -1733,18 +1758,27 @@ public function get_rating_data_for_user($userid) {
     }
 
     /**
-     * Returns all ids of users who handed in a rating to any choice of the instance.
+     * Returns all ids of users in this course who handed in a rating to any choice of the instance.
      * @return array of userids
      */
     public function get_users_with_ratings() {
+
+        $raters = array_map(
+            function ($rater) {
+                return $rater->id;
+            },
+            $this->get_raters_in_course());
+
         $sql = "SELECT DISTINCT r.userid
                 FROM {ratingallocate_choices} c
                 JOIN {ratingallocate_ratings} r
                   ON c.id = r.choiceid
-               WHERE c.ratingallocateid = :ratingallocateid AND c.active = 1";
+               WHERE c.ratingallocateid = :ratingallocateid AND c.active = 1 AND r.userid IN (" . implode(",", $raters) . ") ";
+
         return $this->db->get_records_sql($sql, [
                 'ratingallocateid' => $this->ratingallocateid,
         ]);
+
     }
 
     /**